Show team and repo badges on README
Show team and repo badges on README

This patch adds the team's and repository's badges to the README file.
The motivation behind this is to communicate the project status and
features at first glance.

For more information about this effort, please read this email thread:

http://lists.openstack.org/pipermail/openstack-dev/2016-October/105562.html

To see an example of how this would look like check:

https://gist.github.com/039f1e1ac3d1db679fc1d5d3d20b9d1c

Change-Id: Ia20ab1f115cc78e5c56c36558dbaec82a3197835

openstack/tosca-parser,openstack/tosca-parser